Climate averages 1991–2020
Ubatuba weather
in September.
A warm, wet month: the joint 9th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Ubatuba: daytime highs average 23.0°C and nights cool to about 18.3°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 154 mm of rain on roughly 14 days, which makes September a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average September day.
The nearest other city in this atlas is Caraguatatuba (41 km away). In September its highs average 24.5°C, 1.5°C warmer than Ubatuba, with 111 mm of rain.
Among the 448 cities listed in Brazil, Ubatuba ranks joint 379th of 448 for the warmest September highs and 422nd of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Ubatuba is 4.5°C cooler than that mean.
From September to October, average highs rise by 0.8°C to 23.9°C, and monthly rainfall rises from 154 mm to 158 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ubatuba climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.0°C23.0°C | 23.0°C | 202 | 15.9 | 13.413 h |
| February | 27.4°C23.2°C | 23.2°C | 151 | 12.9 | 12.913 h |
| March | 26.5°C22.5°C | 22.5°C | 189 | 15.2 | 12.212 h |
| April | 25.3°C21.1°C | 21.1°C | 134 | 12.2 | 11.612 h |
| May | 23.5°C19.0°C | 19.0°C | 125 | 11.8 | 11.011 h |
| June | 23.0°C18.0°C | 18.0°C | 102 | 10.0 | 10.711 h |
| July | 22.4°C17.3°C | 17.3°C | 117 | 10.1 | 10.811 h |
| August | 22.6°C17.4°C | 17.4°C | 93 | 10.3 | 11.311 h |
| September, selected | 23.0°C18.3°C | 18.3°C | 154 | 14.3 | 11.912 h |
| October | 23.9°C19.5°C | 19.5°C | 158 | 15.2 | 12.613 h |
| November | 24.4°C20.3°C | 20.3°C | 172 | 15.5 | 13.213 h |
| December | 26.0°C21.9°C | 21.9°C | 164 | 14.9 | 13.514 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Caraguatatuba in SeptemberBrazil · 41 kmHigh 24.5°C · Low 18.7°C · 111 mm rain
- São Sebastião (Sao Paulo), Brazil in SeptemberBrazil · 50 kmHigh 23.4°C · Low 19.0°C · 132 mm rain
- Taubaté in SeptemberBrazil · 67 kmHigh 25.6°C · Low 14.7°C · 83 mm rain
- Pindamonhangaba in SeptemberBrazil · 69 kmHigh 26.2°C · Low 15.1°C · 83 mm rain
- Guaratinguetá in SeptemberBrazil · 70 kmHigh 25.9°C · Low 15.6°C · 91 mm rain
- Caçapava in SeptemberBrazil · 75 kmHigh 25.6°C · Low 15.0°C · 89 mm rain
- Lorena in SeptemberBrazil · 78 kmHigh 25.8°C · Low 15.3°C · 66 mm rain
- São José dos Campos in SeptemberBrazil · 88 kmHigh 25.5°C · Low 15.0°C · 77 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ubatuba) is explained once on the Ubatuba year overview and on the Sources, method and limits page.